Topic: Arecibo Ionospheric Observatory
'Gigantic jet' lightning isn't well understood, but could balance out the electrical charge of thunderstorms. One of the biggest ever observed was documented over China, scientists reported this week.
On November 8 and 9, the quarter-mile-wide asteroid 2005 YU55 will zoom past the Earth, coming within about 200,000 miles, a distance closer than our moon.
05/09/2011 05:39 pm